Description:This kit will increase the horsepower and airflow for your pit bike and ATV.It fits all 125cc 138cc 140cc 200cc 250cc engines and replica bikes that have the Honda 200 250 style engine.It also works with Chinese made ATVs. Please check measurements before purchase!This Carburetor will also work on a variety of other engines.Measures Intake Side: Inner Diameter: 28mm , Outer Diameter: 35mm , Air Filter Side: Outer Diameter 43mmSpecification:Replacement part found on:Yamaha BW200Yamaha DT175Yamaha TTR125Yamaha YZ80Package Includes:1Piece Carburetor